&tde-authors; &tde-release-version; Reviewed: &tde-release-date; &tde-copyright-date; &tde-team; This handbook describes the vnc protocol. TDE vnc protocol The vnc protocol is also known as the Remote Frame Buffer (rfb) protocol. Similar to the SSH protocol, the vnc protocol is used to provide access to graphical desktops on a remote system. The vnc protocol is used by Krfb and Krdc.